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Finding the Fourth Proportional to 163,061.51, 224,764.56 and 128,549.97

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Solution

The fourth proportional to 163,061.51, 224,764.56 and 128,549.97 is: 177,193.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,061.51 : 224,764.56 = 128,549.97 : x
  2. Step 2: Convert to fraction form
    163,061.51/224,764.56 = 128,549.97/x
  3. Step 3: Cross multiply
    163,061.51x = 224,764.56 × 128,549.97
  4. Step 4: Simplify right side
    163,061.51x = 28,893,477,445.06
  5. Step 5: Solve for x
    x = 28,893,477,445.06/163,061.51
  6. Step 6: Final answer
    x = 177,193.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.